cog/Plugins/GME/GameContainer.m

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//
// GameFile.m
// Cog
//
// Created by Vincent Spader on 5/29/06.
// Copyright 2006 Vincent Spader. All rights reserved.
//
#import <GME/gme.h>
#import "GameContainer.h"
#import "GameDecoder.h"
#import "Logging.h"
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@implementation GameContainer
+ (NSArray *)fileTypes
{
//There doesn't seem to be a way to get this list. These are the only multitrack types.
return [NSArray arrayWithObjects:@"ay", @"gbs", @"hes", @"kss", @"nsf", @"nsfe", @"sap", @"sgc",
@"vgm",@"vgz", // These are included so they can override AdPlug
nil];
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}
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+ (NSArray *)mimeTypes
{
return nil;
}
+ (float)priority
{
return 1.0f;
}
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//This really should be source...
+ (NSArray *)urlsForContainerURL:(NSURL *)url
{
if ([url fragment]) {
// input url already has fragment defined - no need to expand further
return [NSMutableArray arrayWithObject:url];
}
// Dodge both VGMStream and AdPlug
NSString * extension = [url pathExtension];
if (extension && ([extension caseInsensitiveCompare:@"vgm"] == NSOrderedSame ||
[extension caseInsensitiveCompare:@"vgz"] == NSOrderedSame))
{
return [NSMutableArray arrayWithObject:[NSURL URLWithString:[[url absoluteString] stringByAppendingString:@"#0"]]];
}
id audioSourceClass = NSClassFromString(@"AudioSource");
id<CogSource> source = [audioSourceClass audioSourceForURL:url];
if (![source open:url])
return 0;
if (![source seekable])
return 0;
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[source seek:0 whence:SEEK_END];
long size = [source tell];
[source seek:0 whence:SEEK_SET];
void * data = malloc(size);
[source read:data amount:size];
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Music_Emu *emu;
gme_err_t error = gme_open_data(data, size, &emu, 44100);
free(data);
if (NULL != error) {
ALog(@"GME: Error loading file: %@ %s", [url path], error);
return [NSArray arrayWithObject:url];
}
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NSURL *m3uurl = [url URLByDeletingPathExtension];
m3uurl = [m3uurl URLByAppendingPathExtension:@"m3u"];
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id<CogSource> m3usrc = [audioSourceClass audioSourceForURL:m3uurl];
if ([m3usrc open:m3uurl])
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{
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if ([m3usrc seekable])
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{
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[m3usrc seek:0 whence:SEEK_END];
size = [m3usrc tell];
[m3usrc seek:0 whence:SEEK_SET];
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data = malloc(size);
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[m3usrc read:data amount:size];
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error = gme_load_m3u_data(emu, data, size);
free(data);
ALog(@"M3U loaded: %s", error ? error : "no error");
}
}
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int track_count = gme_track_count(emu);
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NSMutableArray *tracks = [NSMutableArray array];
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int i;
for (i = 0; i < track_count; i++) {
[tracks addObject:[NSURL URLWithString:[[url absoluteString] stringByAppendingFormat:@"#%i", i]]];
}
return tracks;
}
@end